Speech Listener Element

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Modified on 2018/08/03 01:36 by Administrator Categorized as Input Registration

» Speech Listener Element

Summary ¶

	Speech Listener
Info
Category:	Input Registration	AddIn:	Base Layer
Creator:	OkazoLab	Scope:	Parent event
Owns Snippets:	None	Usage:	Snippets

Properties ¶

Name	Description	Constraints	Type
Settings
Working mode	Determines a working mode for speech recognition by this element	Design Time..	enSpee..
Recognition Engine	Defines the chosen speech recognition engine among all engines installed in the system	Design Time..	Int32
Target phrase	Target phrase to be recognized. If not empty, the element is triggered only if this phrase is recognized	Normal..	String
Phrase choices	Predefined choices of phrases to be recognized, whereas other will be ignored. Use ; as a separator between phrases	Design Time..	String
Trigger Once	If true, the element can be triggered only once while the parent event is active	Design Time..	Boolean
Test Recognition	Opens a test recognition window	Design Time..	Boolean
Runtime Status
Recognized Phrase	Last recognized phrase	Status..	String
Recognition Confidence	Confidence level of the last recognized phrase	Status..	Single
Recognition Status	Current status of the speech recognition process	Status..	String
Timing Statistics
Triggering Time	Indicates the latest event time when the element was triggered (in ms elapsed since activation of the parent event)	Status..	clTime
Is Triggered	Indicates that the element has been triggered at least once since activation of the parent event	Normal..	Boolean
Control
Is Enabled	If set to false the element is completely omitted when the experiment is run	Design Time..	Boolean
Title	Title of the element	Design Time..	String

¶

Speech Listener Element allows real-time recognition of spoken words delivered through microphone line on a sound card. The speech is recognized into a text which can be used for determining a participant response. The elements requires Microsoft Speech API (SAPI) to be installed and properly configured on a computer.

Table of Contents [Hide/Show]

Summary
Properties

Installation
Snapshots
Practical Use
Technique 1
Technique 2

Installation ¶

Microsoft Speech API is included in Window 7 and Windows Vista. To make the element working in Window XP, Microsoft SAPI can be installed using Microsoft Office installation. Here is an MS article describing the SAPI installation process for Windows XP.

Snapshots ¶

Snapshot 1

Snapshot 2

Practical Use ¶

Technique 1 ¶

Step 1
Step 2

Technique 2 ¶

Step 1
Step 2

 // Check the trial outcome. Result and RT just other user variables
// insert code snippet here..

	Name	Size
	Speech-Listener-Element-Icon.png	3.64 KB

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